transparent para graficos??

Thread View: comp.lang.basic.visual.misc

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2 total messages Started by David Delgado Thu, 24 Jan 2002 13:10

#480

Author: David Delgado
Date: Thu, 24 Jan 2002 13:10

27 lines
1741 bytes

hola,

a ver si alguien seria tan amable de comentarme si existe la
posibilidad de colocar un grafico en pantalla (me da igual que control de VB
utilizar) y luego colocar otro encima que sea transparente, es decir,
la aplicacion final que quiero es poder seleccionar un punto de la grafica
mediante una "regla movil" encima de la grafica principal. Esta regla se
moveria
con el mouse.

�alguna idea?
existe alguna propiedad "transparent".

muchas gracias.


--
***************************************
David Delgado
R+D Software
Instruments Division

BioSystems S.A.
Costa Brava, 30.
Barcelona 08030 - Spain
Tel: 34 (93) 311 00 00
***************************************

Re: transparent para graficos??

#481

Author: Rub�n Vig�n
Date: Thu, 24 Jan 2002 14:11

11 lines
1697 bytes

�chale un vistazo a la siguiente API:

Private Declare Function TransparentBlt Lib "msimg32.dll" (ByVal hdc As
Long, ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight
As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal
nSrcWidth As Long, ByVal nSrcHeight As Long, ByVal crTransparent As Long) As
Boolean

Rub�n Vig�n
Departamento de inform�tica, Grupo Sodes S.A.
www.sodes.com

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